Benjamin t



i (No Model.)

B. T. BABBITTQ,

BOILR FEEDER.

Patented -J an.V 2,` 1883'.

UNTTED STATES PATENT OEEICE.

BENJAMIN T. BABBITI, 0F NEVI YORK, N. Y.

BOlLER-FEEDER.

SPECIFICATION forming part of Letters Patent No. 269,993, dated January 2, 1883.

nppiicennn inea october 2s, 1882. (No model.)

To all whom it may concern:

Be it known that I, BENJAMIN T. BABBITT, a citizen ot' the United States, residing in the city, county, and State of New York, have invented new and useful Improvements in Boiler Feeders, of which the following is a specitication.

My invention relates to improvements in that kind or description of boiler-feeders which consist of a plug rotating within a shell or casing, and containing separate avitieswhich are, through proper openings in the shell or casing, alternately Iilled with Water, by gravitation, from a suitably-placed reservoir, and also discharged, by gravitation,into the boiler as the plug rotates, the said plug being arranged centrally-on a line with the intended` Water-level of the boiler,` and keeping the .Water always at the desired level.

The invention consists in a novel system ot steam and Water passages andcavities provided between the-plug and its shell or casing, as hereinaiter described and claimed, whereby the pressure of the steam in the boiler acting, against one side of the plug is counterbaby anced. Y

The accompanyingdrawings forni part of this speciication, and illustrate what Iconsider the best means of carrying out my invention.

Referring to the drawings, Figure l is a sectional view, representing my invention applied in conjunction with a boiler and Water-reservoir. Fig. 2 is a central vertical section of my 'improve-d boiler-feeder separately on'a larger scale. Fig. 3 is a transverse section ou the line :c x ot' Fig. 2. Figj is a transverse section on the line y y of Fig. 2.

l In each ot the views similar letters of reference are employed to indicate corresponding parts Wherever they occur.

A represents the casing or shell of my improved boiler-feeder, and B is the rotating plug thereof. The casing or shell A is formed with inlet and outlet openings, and sockets A Az on its opposite sides, the socket of the inletopening A' being tapped to receive the end of .a pipe or tube, G, connecting with a reservoir,

D, or other suitable watersupply, and the nozzle of the outlet-openin g A2 being tapped to receive .the end of a pipe or tube, E, connectedv AWith the under side of the boiler F at f.

ed with separate cavities b b', formed on opposite sides of the plug thereof and divided one from another bya horizontal partition, b2. The plug B isr preferably formed tapering, and adapted to be received in a `correspondinglyformed seat, al', in the casing or shell. rlhe taper plug Bis represented at its end b3 as heid in position by means ofa center screw-bearing, A, which is tapped into the end a2 of the shell A, and there retained by a lock or back nut, A4. The plug B, atits opposite end, is formed with a shaft, B, provided with an enlargement, B27 adapted to be received within a stuff# ing-box,

I is a packing-ring, which, with the cap J, screwed onto'the tapped end of the casing or sh'ellA, serves to form a water andsteam tight joint.

The shaft B and its plug B may be rotated by means of a crank, K, driven by a steamengine or other suitable power.

Zl are steam and waterV passages, formed within the shell on opposite sides ofthe outletopening A2, each of which, by means of an al1- nular passage, l', formed in the shell A, communicates with an enlarged cavity, Z2, formed in the shell A on the opposite side of the plug, so that where the discharge is eii'ected the aggregate areaof the cavities Z2 should be equal to the sum ot' the areas of the opening A2 and passages l l.

The operation o'f the device is as follows: The engine or other operating means being started, the crank K will be started, and consequently the plug B rotated, and at each revolution one or other ot' the cavities, b or b', will be lled with water gravitating through the pipe or' tube C from the reservoir l).4 While at the same time the water previously received in the opposite cavity wiilbe discharged.. by gravitation into the pipe or tube E, and thence IOO delivered into the boiler in the manner common to boiler-feeders of this class, and during this operation the pressure from the boiler acting through the opening A2 on the lower part ot' the plug is balanced by the corresponding' pressure Which reaches the upper part of the plug through the passages l l and cavities Z2 in the shell A.,

Having thus described myinventiomwhatl claim, and desire to secure by Letters Patent,

A device for feeding Water to boilers, combining in its structure a'shell or casinghaving an inlet and an outlet passage, interior balancing-cavities and longitudinal passages for connecting the said cavities through the outletpassage, and an interior rotating plug constructed with water-receiving,r cavities sepa.

rated by a partition, said shell or'casing having means for connecting; it with the steamspace of a boiler, substantially as and for the 

